Synthesis and characterization Novel sulfonyl-containing fluorenes as materials for organic light-emitting diods. Journal of the College of Basic Education, [S. l.], v. 21, n. 89, p. 141–148, 2022. DOI: 10.35950/cbej.v21i89.6741. Disponível em: https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/6741.. Acesso em: 2 jul. 2024.